Detection rules › Sigma

Suspicious Digital Signature Of AppX Package

Severity
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects execution of AppX packages with known suspicious or malicious signature

Event coverage

ProviderEvent IDTitle
AppxPackagingOM157The app package signature was validated for core content of the app package published by subjectName.

Stages and Predicates

Stage 1: selection

subjectName: 'CN=Foresee Consulting Inc., O=Foresee Consulting Inc., L=North York, S=Ontario, C=CA, SERIALNUMBER=1004913-1, OID.1.3.6.1.4.1.311.60.2.1.3=CA, OID.2.5.4.15=Private Organization'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
subjectNameeq
  • CN=Foresee Consulting Inc., O=Foresee Consulting Inc., L=North York, S=Ontario, C=CA, SERIALNUMBER=1004913-1, OID.1.3.6.1.4.1.311.60.2.1.3=CA, OID.2.5.4.15=Private Organization